release: update version (#48)

Author: seemenkina

Cargo.lock

@@ -8,7 +8,7 @@ members = [
 
 [package]
 name = "de_mls"
-version = "2.1.0"
+version = "2.0.0"
 edition = "2021"
 
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html